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151840856 = 23199191087
BaseRepresentation
bin10010000110011…
…10100001011000
3101120201022111102
421003032201120
5302332401411
623022250532
73522424466
oct1103164130
9346638442
10151840856
117878a312
1242a26a48
13255c4a7b
1416247836
15d4e4d3b
hex90ce858

151840856 has 32 divisors (see below), whose sum is σ = 300288000. Its totient is φ = 71780256.

The previous prime is 151840817. The next prime is 151840873. The reversal of 151840856 is 658048151.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139145 + ... + 140231.

It is an arithmetic number, because the mean of its divisors is an integer number (9384000).

Almost surely, 2151840856 is an apocalyptic number.

It is an amenable number.

151840856 is a deficient number, since it is larger than the sum of its proper divisors (148447144).

151840856 is a wasteful number, since it uses less digits than its factorization.

151840856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2031 (or 2027 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 38.

The square root of 151840856 is about 12322.3721742204. The cubic root of 151840856 is about 533.4940102687.

The spelling of 151840856 in words is "one hundred fifty-one million, eight hundred forty thousand, eight hundred fifty-six".

Divisors: 1 2 4 8 19 38 76 152 919 1087 1838 2174 3676 4348 7352 8696 17461 20653 34922 41306 69844 82612 139688 165224 998953 1997906 3995812 7991624 18980107 37960214 75920428 151840856